Force
What is force?
A push or pull upon an object resulting from the object's interaction with another object.
What is magnetism?
When certain metals attractive and repel.
What is gravity?
The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
What is the difference between a push and a pull?
A push moves an object away, while a pull brings it closer.
Name two types of forces.
Magnetism, gravity,
What tool do we use to test magnetism.
magnet
Is gravity a pulling force or a pushing force?
Pulling force
Give an example of pushing and pulling in everyday life.
Pushing a door to open it, pulling a drawer to close it. Answers may vary.
How can you increase the force on an object?
By applying more force to it.
What tool do we use the Earth’s magnetic field for navigation.
A compass
Explain how gravity is involved when a ball is kicked in the air
Gravity is a pulling force that pulls the ball back down to the surface of the Earth.
How do pushes and pulls affect the motion of an object?
They can start, stop, or change the direction of an object’s motion.
What is the unit of measure for force?
The newton (N).
What happens to the force of magnetism when the distance between the object and the magnet is increased.
The force of magnetism decreases.
What happens to the force of gravity when the distance between objects increases. Does it increase or decrease?
The force of gravity decreases.
Is magnetism a pushing force or a pulling force?
Magnetism is both. When opposite poles are aligned it is a pulling force because the poles attract. When the same poles are aligned it is a pushing force because they repel.
How is the amount of force related to acceleration of an object?
The greater the force that is applied the greater the acceleration.
How do we know that the Earth has a gravitational pull that affects us.
Answers may vary. Such as we know that gravity exist because we can drop and object and observe it’s affects on the object as it falls.
Explain how gravitational force is related to the orbit of planets around the sun.
Gravitational force keeps planets in orbit around the sun; it provides the necessary force to maintain the orbits.
Explain how pushing and pulling forces are involved in a game of tug of war.
Pulling a rope in tug-of-war involves both teams pulling while also pushing the ground with their feet for better grip.